149405721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{20639}}^1$

素因数の和:20788

約数の個数: 16

約数和(自身を含む): 211353600

約数和(自身を除く): 61947879

約数列:

[1, 3, 19, 57, 127, 381, 2413, 7239, 20639, 61917, 392141, 1176423, 2621153, 7863459, 49801907, 149405721]

約数ペア:

[(1, 149405721), (3, 49801907), (19, 7863459), (57, 2621153), (127, 1176423), (381, 392141), (2413, 61917), (7239, 20639)]